Composition comprising an aqueous phase and a fatty phase that are visually distinct used for hair treatment

Abstract

The present invention relates to a cosmetic hair treatment process comprising the step of applying on the hair a composition comprising:—a fatty phase comprising: a) at least one oil; b) at least one fatty-phase thickener; c) at least one water-insoluble mineral particulate compound, other than the fatty-phase thickener b);—an aqueous phase comprising at least one aqueous-phase thickening polymer, the two phases being visually distinct.

1 . Cosmetic hair treatment process comprising the step of applying on the hair a composition comprising:
 a fatty phase comprising:
 a) at least one oil; 
 b) at least one fatty-phase thickener; 
 c) at least one water-insoluble mineral particulate compound, other than the fatty-phase thickener b); 
   an aqueous phase comprising at least one aqueous-phase thickening polymer, the two phases being visually distinct.   
     
     
         2 . Process according to the preceding claim, characterized in that the oil(s) are chosen from C 6 -C 16  lower alkanes; linear or branched hydrocarbons of mineral or synthetic origin containing more than 16 carbon atoms; non-silicone oils of animal origin; oils of plant origin; fluoro oils; liquid fatty alcohols; liquid fatty esters; non-salified liquid fatty acids; silicone oils; or mixtures thereof; and are preferably chosen from C 6 -C 16  lower alkanes; linear or branched hydrocarbons of mineral or synthetic origin containing more than 16 carbon atoms; liquid fatty alcohols; oils of plant origin; or mixtures thereof; and even more preferentially chosen from C 6 -C 16  lower alkanes; linear or branched hydrocarbons, of mineral or synthetic origin, of more than 16 carbon atoms; liquid fatty alcohols; or mixtures thereof. 
     
     
         3 . Process composition according to either of the preceding claims, characterized in that the oil(s) are present in an amount ranging from 0.1% to 20%, more preferentially in an amount ranging from 1% to 10% and better still in an amount ranging from 1.5% to 5% by weight, relative to the total weight of the composition. 
     
     
         4 . Process according to any one of the preceding claims, characterized in that the fatty-phase thickener is chosen from mineral fatty-phase thickeners and organic fatty-phase thickeners. 
     
     
         5 . Process according to the preceding claim, characterized in that the mineral fatty-phase thickeners are chosen from silicates and silicas, preferably from silicates. 
     
     
         6 . Process according to  claim 4 , characterized in that the organic fatty-phase thickeners are chosen from semicrystalline polymers, non-silicone polyamides, silicone polyamides, monoalkyl or polyalkyl esters of saccharides or of polysaccharides, N-acylamino acid amide derivatives, copolymers comprising one or more alkylene and/or styrene blocks, and elastomeric organopolysiloxanes, and mixtures thereof. 
     
     
         7 . Process according to any one of the preceding claims, characterized in that the fatty-phase thickener or thickeners is or are present in a content ranging from 0.05% to 10% by weight relative to the total weight of the composition and preferably from 0.075% to 5% by weight relative to the total weight of the composition. 
     
     
         8 . Process according to any one of the preceding claims, characterized in that the water-insoluble mineral particulate compound is chosen from metal particles, oxides, mineral salts, carbides, nitrides, sulfides and hydroxides, especially from silicates, alumina, silica and mineral compounds containing the same such as perlite, nitrides, calcium carbonate, preferably from silica particles, especially hydrophobic silica aerogel particles, perlite, nitrides, especially boron nitride, silicates, especially aluminosilicates such as kaolin. 
     
     
         9 . Process according to any one of the preceding claims, characterized in that the water-insoluble mineral particulate compound(s) are present in a content ranging from 0.01% to 5%, preferably from 0.02% to 2% and better still from 0.02% to 0.5% by weight, relative to the total weight of the composition. 
     
     
         10 . Process according to any one of the preceding claims, characterized in that the amount of fatty phase ranges from 0.5% to 50% by weight, preferably from 0.7% to 30% by weight and better still from 1% to 20% by weight, relative to the total weight of the composition. 
     
     
         11 . Process according to any one of the preceding claims, characterized in that the aqueous-phase thickener is chosen from non-associative thickening polymers bearing sugar units, non-associative thickening polymers not bearing sugar units and associative thickening polymers. 
     
     
         12 . Process according to any one of the preceding claims, characterized in that the aqueous-phase thickener is chosen from anionic thickening polymers. 
     
     
         13 . Process according to any one of the preceding claims, characterized in that the aqueous-phase thickener is chosen from associative or non-associative thickening polymers bearing acrylic or methacrylic units. 
     
     
         14 . Process according to any one of the preceding claims, characterized in that the aqueous-phase thickener or thickeners is or are present in an amount ranging from 0.1% to 20%, more preferentially in an amount ranging from 0.2% to 15% and better still in an amount ranging from 0.5% to 10% by weight, relative to the total weight of the composition. 
     
     
         15 . Process according to any one of the preceding claims, characterized in that the amount of aqueous phase ranges from 50% to 99.5% by weight, preferably from 60% to 95% by weight and better still from 70% to 90% by weight, relative to the total weight of the composition. 
     
     
         16 . Process according to any one of the preceding claims, characterized in that the composition comprises less than 2% of surfactant and preferably does not comprise any surfactant. 
     
     
         17 . Process according to any one of the preceding claims, characterized in that the composition has a viscosity of greater than or equal to 0.1 Pa·s, better still ranging from 0.1 Pa·s to 500 Pa·s, even better still from 0.5 Pa·s to 300 Pa·s and more preferably from 1 Pa·s to 200 Pa·s at a temperature of 25° C. and at a shear rate of 1 s −1 . 
     
     
         18 . Process according to any one of the preceding claims, characterized in that the composition is in gel form with oily insertions such as oily volutes. 
     
     
         19 . Process according to any one of the preceding claims, characterized in that the composition is obtained by mixing the two phases using a static mixer. 
     
     
         20 . Process according to any one of the preceding claims, characterized in that it further comprises the step of rinsing the composition out after an optional leave-in time, in the presence or absence of heat. 
     
     
         21 . Use of the composition according to any one of  claims 1  to  19  for caring for the hair and/or for shaping the hair.